BMW 7841816 Front Engine Motor Throttle Body Set Left Right

( Manufacturer Part Number: 7841816 ), ( Type: Throttle Body ), ( Ipn: 4.0 4.0l V8 8 ), ( Fitment Type: Direct Replacement ), ( Country Of Origin: Germany )

Review BMW Oem Front Engine Motor Throttle Body Set Left And Right fits E92 E93 M3 S65 2008–2013

The **BMW 7841816 E92/E93 M3 Front Engine Throttle Body Set (Left & Right) for the S65 (2008 2013)** is a high-performance, factory-specified component designed to enhance the breathing and responsiveness of the iconic **6.0L Twin-Turbo V10 engine** found in the M3 (E92/E93) and its track-focused cousin, the **M3 CSL**. This meticulously engineered throttle body set replaces the stock units with precision-machined, high-flow alternatives that reduce internal restrictions, allowing for improved throttle response, smoother power delivery, and a more engaging driving experience both on the street and on the track. Crafted from durable materials and built to exacting BMW specifications, these throttle bodies are engineered to maintain optimal airflow while ensuring compatibility with the S65 s advanced fuel injection and turbocharging systems. The left and right units are paired for symmetry, ensuring balanced performance and minimizing any potential imbalance that could affect throttle smoothness or engine efficiency. Whether you're seeking a subtle refinement for daily driving or a noticeable performance boost for spirited laps, this throttle body set is a straightforward yet effective upgrade that complements other modifications like cold air intakes, exhaust systems, or ECU tuning. Its installation is relatively straightforward, requiring minimal disassembly and offering a quick return on investment in terms of both drivability and power potential. For enthusiasts who demand nothing less than the best from their M3, this throttle body set is a proven choice that bridges the gap between stock reliability and high-performance capability.

### **Pros and Cons of Buying a BMW N74 (E92/E93 M3) Throttle Body Set (Left/Right) for S65 (2008 2013) Applications**

1. **Performance Improvement** A high-quality throttle body set (such as those from **BMS, AEM, or Walbro**) can reduce air restriction, improve throttle response, and enhance engine breathing, especially when paired with a cold air intake or upgraded fueling.

2. **Compatibility with S65 Modifications** The **N74 engine** (used in E92/E93 M3) and the **S65 (E92/E93 M3 CSL)** share many components, but the throttle body is a critical part of the intake system. Upgrading it can help maintain balance if you re running other performance parts (e.g., turbocharger, intercooler, or exhaust).

3. **Better Throttle Control** Some aftermarket throttle bodies feature smoother actuation, reducing "throttle lag" and improving drivability, especially under aggressive driving conditions.

4. **Aesthetic Appeal** Some throttle body kits come with polished or high-flow designs that improve the engine bay s visual appearance, which can be appealing for show cars.

5. **Potential for Tuning Flexibility** A larger or more efficient throttle body can allow for better tuning adjustments, especially if you re running a **standalone ECU** or **MHD (M3CSL Hardware)** setup.

6. **Durability & Build Quality** High-end throttle body sets (e.g., **BMS, AEM, or Walbro**) are often made from **aluminum or billet materials**, offering better durability than stock units, which can degrade over time.

7. **Easier Installation** Unlike some engine modifications, throttle body swaps are relatively straightforward, requiring minimal disassembly and no major wiring changes.

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1. **Limited Direct Power Gain** Unlike a **turbo upgrade, exhaust, or fueling modification**, a throttle body swap alone will not provide significant horsepower or torque increases. The biggest benefits come from **reduced intake restriction**, not raw power output.

2. **Potential for Fueling Issues** If the throttle body is upgraded without adjusting fuel delivery (via tuning), you may experience **lean conditions, rough idle, or stalling**, especially under heavy throttle.

3. **Compatibility Concerns** While the **N74 and S65 share some components**, the **throttle body wiring and mounting points** must be verified. Some aftermarket sets may require **adapters or custom modifications** to fit properly.

4. **Cost vs. Benefit** A high-quality throttle body set can range from **$200 $600**, depending on the brand. For the modest performance gains, some may question whether the investment is justified unless paired with other modifications.

5. **Potential for Throttle Body Leaks** Some aftermarket throttle bodies (especially cheaper ones) may develop **leaks at the gasket or seals**, leading to **air leaks and reduced efficiency**. Proper sealing and installation are critical.

6. **ECU Limitations** The **stock N74 ECU** may not fully optimize for a larger throttle body, leading to **suboptimal fueling or timing adjustments**. A **custom tune (MHD, Haltech, or standalone)** is often required for best results.

7. **Not a Standalone Performance Mod** Unlike a **cold air intake or exhaust**, a throttle body swap is most effective when combined with other modifications (e.g., **turbo, intercooler, or fueling upgrades**). Alone, the gains are minimal.

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A **throttle body set for the N74/S65 (E92/E93 M3) is a worthwhile upgrade if you are already running or planning other performance modifications** (e.g., turbo, intercooler, or exhaust). It helps **reduce intake restriction, improve throttle response, and supports better tuning flexibility**. However, **it should not be considered a standalone power upgrade** its benefits are secondary to more impactful modifications.

If you are **not running any other performance parts**, the gains may be negligible, and the cost may not justify the investment. On the other hand, if you are **building a high-performance M3 (especially for track use)**, a **high-quality throttle body (BMS or AEM) paired with a proper tune** can be a useful addition to your build.

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- **If you are running a turbocharged or forced-induction setup** (e.g., **S65 turbo, intercooler, or fueling upgrades**), **upgrade to a high-flow throttle body (BMS or AEM)** to ensure proper airflow and prevent restriction.

- **If you are on stock or naturally aspirated**, the benefits are minimal, and you may be better off investing in **other mods (exhaust, suspension, or ECU tuning)**.

- **Always pair any throttle body swap with a custom tune** (MHD, Haltech, or standalone) to avoid fueling or drivability issues.

- **Choose a reputable brand** (BMS, AEM, or Walbro) to ensure durability and proper fitment.

- **Consider a throttle body with a smoother actuator** if you experience **jerky throttle response** on stock setups.

**Final Verdict:** A throttle body upgrade is a **good mid-tier modification** for performance builds but should be part of a **larger engine tuning and airflow upgrade strategy**. For stock or lightly modified cars, the return on investment may not be worth it.

Details:

part #: 7841816 prices

• $259.99-$1198.00

specifications cylinderheapar:

• for models: E92, E93, M3, S65
• for makes: Bmw
• for years: 2008-2013
• mpn: 7841816
• type: Throttle Body
• ipn: 4.0 4.0l V8 8
• fitment type: Direct Replacement
• country of origin: Germany

offer cylinderheapar:

• availability: In Stock
• options: Ship-to-home
• sold: 0
• started: March 8, 2026
• quantity: 1

general cylinderheapar:

• condition: Used
• Car Truck Parts Accessories > Engines Engine Parts > Cylinder Heads

seller cylinderheapar:

• # reviews: 14023
• rating: 99.9%
• city: Rogers, Minnesota

returns cylinderheapar:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

payments cylinderheapar:

• other
• wallet: Apple-pay
• credit card: Visa

shipping cylinderheapar:

• cost: $0.00
• carrier: USPS
• service: USPS Ground Advantage
• class: Standard
• type: Fixed
• transit: 3-5 Days

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